How to add a Zimbra mail server Calendar to an iPhone
Users of the OpenSource edition of Zimbra can add their Zimbra Calendar to an iPhone by configuring it as follows: go to the system setting menu and select Mail, Contacts, Calendars. Press…
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389 notes on Linux, tools and troubleshooting
Mass killing MySQL connections
Too many MySQL connections or locked tables can slow a server. Mass-killing selected stalled connections can restore service with minimal downtime.
Using Zimbra Webmail
Accessing Email through Web Mail: enter http://webmail.yourdomain.com in a Web browser's URL field to see the login page, then enter your Username.
Zimbra Mail Server (ZCS) installation services
Zimbra Mail Server installation, troubleshooting, consulting, and training services. Zimbra Mail Server, or Zimbra Collaboration Server (ZCS), is a highly popular Email and Collaboration system.
How to redirect stderr and stdout to a file
Managing output is a common task in Linux. Commands often redirect errors and output to files so they can be stored and inspected later, especially commands…
How to find all tables use particular storage engine on MySQL
MySQL supports various table engines, including MyISAM, InnoDB, MEMORY, and NDB. Finding which engine a table uses may seem complicated, but it is straightforward…
How to list the files from rpm package by rpm or yum-utils
You can list the files in an RPM package, whether installed or not, in two ways: rpm and repoquery. Here is how to use both commands…
[Infographic] History of Linux
History of Linux tells the story of Linux with a little GNU history, using an infographic to make it easier to read and understand. It also covers the OS's growth, especially in…
Enable multiple SSL vhosts on a single IP with Apache
Years ago, enabling HTTPS with multiple SSL certificates on Apache port 443 seemed difficult. SNI, or Server Name Indication, makes it much easier…